CGC - 5/8" SHEETROCK Firecode Core (Type X) Drywall Gypsum Panel, 4' x 9' This product is developed with additives that support the integrity of the core under fire exposure, resulting in improved fire protection over standard gypsum panels. Systems using SHEETROCK® Brand FIRECODE® Type X meet the ASTM & CSA requirements for fire rated drywall. Type X Gypsum Panels have a fire rating system of up to 1 hour. Benefits are: Fire-Resistant Dry Construction Quicker and Easier Installation Reduces Strain and Fatigue Easy to Score and Snap Tapered Edges for Cleaner Finishing Once primed, can be Painted, Wallpapered, or Textured for the desired look. A Product of Canada. Data Sheet